The first model supposes every test case has equal fault detective ability and can get the same fault coverage.

第一个模型假设每个测试用例有相同的故障检测能力，能获得相同的故障覆盖率；

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The first model supposes every test case has equal fault detective ability and can get the same fault coverage.

第一个模型假设每个测试用例有相同的故障检测能力，能获得相同的故障覆盖率；

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